FusionDex

The body of a Starxys appears completely solid at first, but it is actually extremely malleable and amorphous. It is often attacked by other underwater Pokémon out of fear of its looks, but will simply regenerate as if nothing had happened.

A Pokémon that mutated from an extraterrestrial virus exposed to a laser beam. People in ancient times imagined that Starxys were transformed from the reflections of stars that twinkled on gentle waves at night.